A dynamic demand function for international reserves based on the seasonal difference is derived. Our model of using seasonal difference distinguishes the present study from previous studies in three aspects. First, the dependent variable is seasonally differenced instead of being first order differenced. Next, the local money market disequilibrium included is also in fourth difference form. Finally, given the existence of stochastic seasonality, a new model, using a seasonal error correction rather than the conventional error correction, is specified and estimated. Based on this new specification, the results yielded are more sensible than those of using a differenced model.
Journal of international money and finance 18(1), pp.107-131